Tungsten is a promising armour material for plasma facing components of nuclear fusion reactors because of its low sputter rate and favourable thermo-mechanical properties. Among all the techniques able to realise W armours, plasma spray looks particularly attractive owing to its simplicity and low cost. The present work concerns the optimisation of spraying parameters aimed at 4–5 mm thickWcoating on copper–chromium–zirconium (Cu,Cr,Zr) alloy substrates. Characterisation of coatings was performed in order to assess microstructure, impurity content, density, tensile strength, adhesion strength, thermal conductivity and thermal expansion coefficient. The work performed has demonstrated the feasibility of thick W coatings on flat and curved geometries. These coatings appear as a reliable armour for medium heat flux plasma facing component.

Riccardi, B., Montanari, R., Casadei, M., Costanza, G., Filacchioni, G., Moriani, A. (2006). Optimization and characterization of tungsten thick coatings on copper based ally substrates. JOURNAL OF NUCLEAR MATERIALS, 352(1-3), 29-35 [10.1016/j.jnucmat.2006.02.069].

Optimization and characterization of tungsten thick coatings on copper based ally substrates

MONTANARI, ROBERTO;COSTANZA, GIROLAMO;
2006-01-01

Abstract

Tungsten is a promising armour material for plasma facing components of nuclear fusion reactors because of its low sputter rate and favourable thermo-mechanical properties. Among all the techniques able to realise W armours, plasma spray looks particularly attractive owing to its simplicity and low cost. The present work concerns the optimisation of spraying parameters aimed at 4–5 mm thickWcoating on copper–chromium–zirconium (Cu,Cr,Zr) alloy substrates. Characterisation of coatings was performed in order to assess microstructure, impurity content, density, tensile strength, adhesion strength, thermal conductivity and thermal expansion coefficient. The work performed has demonstrated the feasibility of thick W coatings on flat and curved geometries. These coatings appear as a reliable armour for medium heat flux plasma facing component.
2006
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-IND/21 - METALLURGIA
English
Con Impact Factor ISI
Riccardi, B., Montanari, R., Casadei, M., Costanza, G., Filacchioni, G., Moriani, A. (2006). Optimization and characterization of tungsten thick coatings on copper based ally substrates. JOURNAL OF NUCLEAR MATERIALS, 352(1-3), 29-35 [10.1016/j.jnucmat.2006.02.069].
Riccardi, B; Montanari, R; Casadei, M; Costanza, G; Filacchioni, G; Moriani, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/51623
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